diff --git a/apps/api/src/services/terminal_session.py b/apps/api/src/services/terminal_session.py
index 6b5d349..755722d 100644
--- a/apps/api/src/services/terminal_session.py
+++ b/apps/api/src/services/terminal_session.py
@@ -142,11 +142,6 @@ class TerminalSession:
         if self._closed:
             logger.warning("Cannot resize: session is closed")
             return
-        
-        # Only resize if dimensions actually changed
-        if self._cols == cols and self._rows == rows:
-            return
-            
         self._cols = cols
         self._rows = rows
         logger.info(f"resize() called for session {self.session_id}: {cols}x{rows}")
@@ -154,9 +149,12 @@ class TerminalSession:
         
         # Docker exec doesn't forward PTY resize to the container process,
         # so we need to explicitly set the size inside the container shell.
-        stty_cmd = f"stty cols {cols} rows {rows}\n".encode()
-        await self.write_input(stty_cmd)
-        logger.info(f"Sent stty command to container for session {self.session_id}: {cols}x{rows}")
+        # Only do this on the first resize to avoid interfering with user input.
+        if not getattr(self, '_stty_sent', False):
+            self._stty_sent = True
+            stty_cmd = f"stty cols {cols} rows {rows}\n".encode()
+            await self.write_input(stty_cmd)
+            logger.info(f"Sent stty command to container for session {self.session_id}: {cols}x{rows}")
 
     async def reset(self) -> None:
         """Reset the session by killing the process and clearing state."""
diff --git a/apps/web/src/components/terminal.tsx b/apps/web/src/components/terminal.tsx
index 2235ca9..38710d7 100644
--- a/apps/web/src/components/terminal.tsx
+++ b/apps/web/src/components/terminal.tsx
@@ -254,15 +254,16 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
       ws.send(data);
     });
 
-    // Handle container resize with ResizeObserver (more reliable than window resize)
+    // Handle window resize with debounce
     let resizeTimeout: ReturnType<typeof setTimeout>;
-    const resizeObserver = new ResizeObserver(() => {
+    const handleResize = () => {
       clearTimeout(resizeTimeout);
       resizeTimeout = setTimeout(() => {
         fitTerminal();
-      }, 100);
-    });
-    resizeObserver.observe(container);
+      }, 250);
+    };
+
+    window.addEventListener("resize", handleResize);
 
     // Refit after mobile header auto-hides (3s delay + 0.3s transition)
     const headerHideTimeout = setTimeout(() => {
@@ -297,7 +298,7 @@ export const TerminalComponent: React.FC<TerminalProps> = ({
     return () => {
       clearTimeout(resizeTimeout);
       clearTimeout(headerHideTimeout);
-      resizeObserver.disconnect();
+      window.removeEventListener("resize", handleResize);
       document.removeEventListener("visibilitychange", handleVisibilityChange);
       if (ws) {
         ws.close();